diff options
Diffstat (limited to 'bin/sh')
| -rw-r--r-- | bin/sh/parser.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/bin/sh/parser.c b/bin/sh/parser.c index f3cc98d..cc04a2a 100644 --- a/bin/sh/parser.c +++ b/bin/sh/parser.c @@ -1998,7 +1998,7 @@ getprompt(void *unused __unused) /* * Format prompt string. */ - for (i = 0; (i < 127) && (*fmt != '\0'); i++, fmt++) + for (i = 0; (i < PROMPTLEN - 1) && (*fmt != '\0'); i++, fmt++) if (*fmt == '\\') switch (*++fmt) { @@ -2011,7 +2011,8 @@ getprompt(void *unused __unused) case 'h': case 'H': ps[i] = '\0'; - gethostname(&ps[i], PROMPTLEN - i); + gethostname(&ps[i], PROMPTLEN - i - 1); + ps[PROMPTLEN - 1] = '\0'; /* Skip to end of hostname. */ trim = (*fmt == 'h') ? '.' : '\0'; while ((ps[i] != '\0') && (ps[i] != trim)) @@ -2061,8 +2062,9 @@ getprompt(void *unused __unused) * Emit unrecognized formats verbatim. */ default: - ps[i++] = '\\'; - ps[i] = *fmt; + ps[i] = '\\'; + if (i < PROMPTLEN - 1) + ps[++i] = *fmt; break; } else |
